package day4;

import java.util.Scanner;

public class Operation {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		System.out.println("请任意输入两个数：");
		Number num = new Number(scanner.nextDouble(), scanner.nextDouble());
		num.add();
		num.sub();
		num.multi();
		num.div();
	}
}
